Riug-kolling machine



Filed Nov. 28, 1 924 4 Sheets-Sheet 1 zzgj' Sept. 3, 1929. J. H. TAYLOR 7 1,726,777

- RI NG ROLLING MAGHIN}:

Filed Nov. 28, 1924 4 Sheets-Sheet 2 Sept. 3, 1929. J. H. TAYLOR RIN G ROLLING MACHINE 4 Sheets-Sheet 5 jj i Filed Nov. 28, 1924 Sept. 3 1929. J TAYLOR 1,726,777

RING ROLLING mam" Filed Nov. 28, 1924 4 Sheets-Sheet 4 Patented Sept. 3, 19239.

UNITED STATES JAMES HALL TAYLOR. OF OAK PARK, ILLINOIS.

RING-ROLLING MACHINE.

Application filed November 28, 1924. Serial No. 752,525.

This invention relates to a ring rolling machine or mill of the type in which a ring is reduced and put in finished form.

it is among the objects of this invention to eliminate as far as possible the slippage of the rolls that more or less roughens the surfaces of the rolled ring and the objectionable cross cutting of the ring that frequently occurs.

With these and other objects in view which will become more apparent in the following description and disclosures in the drawings, this invention comprises the novel structure and combinations hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the different views Figure 1 is a longitudinal sectional view through the ring rolling machine.

Figure 2 is an enlarged sectional View through the differential drive for certain rolls.

Figure 3 is an enlarged horizontal sectional view of the machine substantially upon the line 33 of Figure 1.

Figure 4 is an enlarged sectional view through the lower roll and the bearing therefor.

Figure 5 is an enlarged front elevational view of the machine.

Figure 6 is a fragmentary side elevational view of a slightly modified form of machine or mill.

Figure 7 is a front elevational view of the modified form of machine.

As shown on the drawings: I

In referring to the drawings there is shown a stationary frame 1 having a vertical bearing 2 and a depending bearing lug 3. A sleeve 4 is rotatably mounted in the vertical bearing 2 and a bevelled pinion 5 is keyed upon the lower end of the sleeve 5 which projects below the bearing 2 for this purpose. A shaft 6 is slidably splined in the bearing sleeve 4. The upper end 6 of this shaft constitutes a roller for engaging the inner periphery of the ring. An inclined roller bearing ring 7 is secured to the upper portion of the bearing 2 and rests upon a block 1 secured to the frame adjacent said bearing and a roll 8 having a roller race in its lower surface surrounds the roller ring 7, suitable conical anti-friction rollers 9 being interposed between the bearing 7 and roll. The roll 8 has an inclined flange 8 to which a plate 10 is secured, the flange and plate define a V which slidinglyfits over the bearing ring 7 which has a V shaped peripheryfor this purpose. The roll 8 is provided with a rolling surface 8 that is adapted for engaging one side of the ring which in the drawlngs is shown as being the lower side, and at right angles to the rolling face 8 there is a second rolling face 8 that engages the roll portion 6 of the shaft 6. The side of the roll that contains the rolling surface 8 projects beyond the portion containing the roller bearmg race whereby a form of rabbet 11 is formed to allow clearance for the upper end of the sleeve 4. Dust proof means 13 may be positioned between the adjacent faces of the roller races and a loose brass ring 12 or the like may be placed between the bearing 7 and plate 10 to provide a good bearing surface. The roll 8 may be provided with cooling ducts 14 through which matter may also escape from the rabbet 11 and the bearing 2 may likewise be made with a duct 15 for a similar purpose. In referring to Figure 1 it will be noted that the stationary bearing ring 7 is supported upon the block 1 just below the point where the roller 8 engages the ring 16 that is being rolled so that the downward thrust is absorbed by the frame 1 that supports the block 1"'. It is apparent that the roll 8 is freely floating, that is, it is not positively driven except through the friction engendered between it and the rolled ring 16 as will later more fully appear. The inclination of the roll 8 is preferably at an angle of 45 to the axis of the bearing.

The frame 1 has a laterally projecting flange or rail 17 (Figure 5) upon each side upon which a carriage is mounted for longitudinal adjustment. This longitudinally adjustable carriage comprises a pair of parallel depending wings or members 18 provided with mortises or guide grooves 19 for receiving the rails 17. A transverse member 20 extends between the wings 18 for rotatably supporting a shaft 21 provided with an upper collar 22 which rests upon the member 20 and a lower collar 23 which bears against the bottom of the member 20 whereby the shaft is rotatably anchored against vertical movement. A worm gear 24 is secured upon the upper end of the shaft 21. This worm gear is driven by a small worm 25 on the shaft of a motor 26 supported on the longitudinally movable carriage. The lower end of the shaft 21 is threaded into a lug 27 on a vertically slidable bearing 28 maintained in the guide grooves 29 (Figure 3) of the wings 18. The bearing 28 is provided with an inclined journal bearing in which a shaft or journal 30 is mounted. The shaft 30 has a. frusto-conical roll 31 secured upon its lower end. This roll is adapted for engaging and rolling one side of the ring 16. In the drawing, the roll 31 is shown as engaging the upper side of the ring. The other or upper end of the shaft 30 carries a bevelled gear 32 that is driven bya similar gear 33 supported upon a shaft 34 journalled in a bearing 35 on an arm 36 extending from the bearing 28. The shaft 3% is adapted to be coupled to the shaft of a driving means which is preferably an A. C. motor.

Upon the lug 27 of the bearing 23 there is secured-a transverse member 37 provided with trunnions 38 at its ends. A bar 39 is adjustably mounted upon the lower end of the aforementioned shaft 6 which is threaded at its lower end for the application of the nuts 40 which engage the bar 39 and retain the same in adjusted position. The ends of the bar 39 are provided with trunnions 38. Links 41 pivotally connect the corresponding trunnions of the bars 37 and 39. According to this construction the upper end of the shaft 6 may be readily maintained in contacting relation with the roll 31' if desirable since the bar 39 is susceptible of vertical adjustment on the shaft 6, The shaft 6 also partakes of the adjustment of the bearing 28 so that this contacting relation may be maintained when the bearing 28 is vertically adjusted.

The aforementioned carriage also has a bearing member 42 which has a depending bearing lug l3 slidably embracing a drive shaft 44 which is rotatably supported thereby and also by the aforementioned bearing lug 3 and a bearing lug l5 depending from the stationary frame 1. A bevelled gear ll; upon the inner end of the shaft at meshes With the gear 5 on the rotatable sleeve l for imparting rotation thereto. The shaft 44 is driven by means of a bevelled gear 4-7 which in turn is driven by a bevelled gear 48 which is differentially driven by a differential drive that will presently be described.

The bearing member 42 has also a pair of parallel horizontal bearing lugs 49 and 50 in which the ends of a hollow sleeve or spider 51 are journalled as shown'in Figure 2. This spider has a bevelled-gear 52 secured thereon. This spider also carries interiorly thereof the usual differential pinions 53 rotatably mounted upon short stub shafts 54 carried by the spider. l/Vithin the ends of the spider are ournalled a pair of bearing sleeves 55 which terminate at their adjacent faces in bevelled gears 56 which are in mesh with the difierential pinions 53. A shaft 57 is socured in one of the sleeves 55 and the same carries the differential gear 48. A shaft 58 is secured in the other sleeve 55 and carries a spur gear 59 upon its outer end. The inner portions of the shafts 57 and 5S and the interior of the sleeves are preferably of polygonal form for securing conjoint rotution between each shaft and its sleeve.

The gear 59 meshes with a pair of gears 60 (Figure upon shafts (ll supported at their ends in the bearing member 4-2. which has a forwardly extending portion for this purpose, and a plate (32 above such extended portion. A friction drum (33 is associated with each gear 60 for .frictionallydriving a roll Gel which is supported upon a shaft (Iii mounted in the forward ends of the plate 02 and the bearing l2. The drinns are dosi ;'ned to contact said roll (ll upon points approximately degrees apart measured upon the periphery of said roll. The roll (34- is adapted to engage the outer periphery of the ring to be rolled.

In referring to Figure 1 it will be noted that the frnsto-conical roll :31 overlaps tln end of the roll (3 and that the freely floating roll 8 contacts the roll ii at the ring pass and overlaps the roll (ilwhich in turn overlaps the rear of the conical roll 31 which is pro vided with a bevelled rear edge Ill" for ibis purpose, consequently a closed p ss is formed through which the ring passe as it ls rcduccd and rolled into finished form.

The gear of the dili'crcnl ind is drl vcu by a small bevelled pinion (35') upon a shah. on journalled in a depending lug it! on the carriage and in a bearing formed in die sin-- tionary frame 1. This shaft or; is preferably driven by an A. C. motor. The differential gearing drives the inner peripheral roll (3 and the outer peripheral roll (HZ. Conseqncnb 1y these rolls may rotate at various SPLC'llul and one may rotate slower than the other is: eliminate slippage with respect to the ring that is being rolled. it is weal known that such slippage of the rolls "rcquenl'ly prod uccs striations or a rough surface on the ring and it is highly desirable to eliminate the same. As the lower roll 8 is not positively driven but is carried around by its frictional engagement with the ring. there will be no slippage between the upper and lower rolls.

In referring to Figures (5 and 7 which illustrate modified features it will be noted that the cross bar 3? that is attached to the rnovable bearing 2? pivotally supports a pair of links 68 which are provided with sockets (ii) at their lower ends which engage over the spherical heads 70 upon adjustable screws l'l slidably splined in a cross head T2 havin a plunger 73 centrally of its lower surnicc which operates in a fluid pressure cylinder 74. In order to sinniltznieously adjust the screws 71 a hand wheel T6 is threaded upon each screw above the cross hca' The hub lll l ll l ofeach hand wheel has an integral sprocket Wheel 7 7 and a sprocket chain 7 8 is trained over said sprocket wheels. The operation of oneof the hand wheels will simultaneously rotate the other in the same direction, consequently the screws may be raised or lowered thereby. Centrally of the cross head 7 2 there is a bearing socket 7 8 into which the lower end of the shaft 7 9 extends that terminates in the upper inner peripheral roll 6*. According to this construction the cross head 72 may be lowered thereby lowering the roll 6 to provide sufficient space for the insertion or removal of the ring 16 making it unnecessary in most cases to shift the carriage or upper hearing and the adjustment of the links 68 through the screws 71 serves to maintain the rolls 6 and 31 in proper relation.

The ring 16 that is being rolled is supported in the ring pass defined by the aforementioned rolls and a movable ring support provided with oppositely directed rolls 81 for engaging the opposite corners of the ring. WVhen it is desired to insert a ring between the rolls or remove one, the carriage is moved to right as viewed in Figure 1, there being suflicient lost motion with respect to the links 41 for this purpose, while in the structure shown in Figure 7 the links 68 can be adjusted.

It is well known that as the ring is rolled and reduced the inner and outer peripheries are varied, so that it is impossible to design peripheral rolls that will always have a true rolling action, consequently there will be slippage at times. However by introducing the differential drive this slippage of the inner and outer peripheral rolls is eliminated. It will alsobe appreciated that the inclination of the roll '8 will produce substantially only a line contact with the ring and as it rotates in the direction of the travel of the ring there will be no cross cutting of the ring. Further the freely floating character of the ring prevents relative slippage with respect to the conical roll. In practice it has been found that rings rolled in this machine have excellent smooth surfaces free of striations or cross cutting.

I am aware that many changes may be made, and numerous details of construction may be Varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

I claim as my invention:

1. In a ring rolling machine, a frusto-conical roll for engaging one side of the ring, a roll for engaging the inner periphery of the ring, a roll having its axis inclined with respect to the last mentioned roll for engaging the other side of the ring, a roll for engaging the outer periphery of the ring, said rolls defining a closed pass.

2. In a ring rolling machine, a roll for engaging one side of the ring, a roll for engaging the exterior periphery of the ring, a roll for engaging the opposite side of the ring and a roll passing through said last mentioned roll at an angle to the axis of said last mentioned roll for engaging the interior periphery of the ring.

3. In a ring rolling mill, a bearing, a roll slidably supported in said bearing, a roll supported for rotation around said bearing and having its axis inclined with respect to the axis of the first roll, and means cooperating with said rolls for defining a ring pass.

4. In a ring rolling machine, a pair of rolls having axially adjustable telescopic relation allld having their axes intersecting at an ang e.

5. In a ring rolling mill, a cylindrical bearing, a roll rotatable about said bearing with its axis at an angle to the axis of said hearing, a second roll slidably supported in said bearing, and means cooperating with said rolls for defining a ring pass.

6. In a ring rolling machine, a frusto-conical roll for engaging one side of the ring, a roll for engaging the outer periphery of said ring, a cylindrical bearing, a roll slidably mounted in said bearing for engaging the interior periphery of said ring, and a roll mounted for rotation about said bearing at an inclined angle to the axis of said hearing for rolling the other side of said ring.

7. In a ring rolling machine, a frustoconical roll for rolling one side of the ring, a freely floating roll engaging the other side of the ring and rolls for rolling the peripheries of the ring, said rolls defining a closed pass.

8. In a ring rolling machine, a roll for engaging one side of the ring, an inclined and freely floating roll for engaging the other side of the ring and rolls for engaging the inner and. outer peripheries of the ring.

9. In a ring rolling machine, a frustoconical roll for engaging'one side of the ring, an inclined and freely floating roll for engaging the other side of the ring, a shaft extending through said freely floating roll and embodying a rolling surface for engaging the inner periphery of the ring and a roll for engaging the outer periphery of said ring.

10. In a ring rolling machine, the combination with a pair of rolls for engaging the sides of the ring, one of said rolls being positively driven and the other being freely rotatable, a pair of rolls for engaging the inner and outer peripheries of said ring, and a differential driving mechanism for said last mentioned rolls.

11. In a ring rollin machine, the combination with a pair of ro ls for rolling the sides of the ring, one of said rolls comprising an inclined freely floating member, and a pair of differentially driven rolls for engaging the inner and outer peripheries of said ring.

12. In a ring rolling machine, a frustoconical roll for engaging one side of the ring,

a roll for engaging the interior periphery of said ring, a roll surrounding said last mentioned roll at an inclined angle to the axis thereof, a roll for engaging the exterior periphery of said ring, and a differential drive for said second and last mentioned rolls.

13. In a ring rolling mill, a pair of rolls for respectively rolling the sides of said ring, one of said rolls being freely floated, and a pair of differentially driven rolls for respectively engaging the inner and outer peripheries of said ring, said rolls defining a closed pass.

14. In a ring rolling mill,apair of rolls,one extending through the other, the axis of said rolls being at an angle to each other and means co-operating With said rolls for forming a ring pass.

15. In a ring rolling mill, a pair of rolls, one having a supporting track around the axis of the other at an inclined angle thereto in combination with mechanism for forming a ring pass.

16. In a ring rolling mill, the combination with a plurality of rolls defining a closed ring pass, one of said rolls being axially shiftable for access to said pass.

17. In a ring rolling mill, a roll, an adjustable bearing therefor, a bar secured to said bearing, links pivoted at their upper ends to said bar, said links having bearing sockets at their lower ends, a cross head, fluid pressure means acting on said coss head, a roll shaft supported on said cross head, and adjustable elements on said cross head fitting in the sockets of said links.

18. In a ring rolling mill, the combination with a plurality of rolls defining a closed ring pass, an adjustable support for one roll, a fluid actuated support for another roll and pivotal and adjustable means connecting said supports.

19. In a ring rolling mill, the combination with a plurality of rolls defining a ring pass,

one of said rolls extending through another roll at an'angle of substantially 45.

20. In a ring rolling mill, a roll having a shaft shift-able in an axial direction and a roll. mounted for rotation about said shaft at an inclined angle thereto.

21. In aring rolling machine, the combination With-a sup port, of a roll carried thereby, a movable support, a roll axially supported thereon, said movable support being controlled in one direction of movement by said first mentioned support.

22. In a ring rolling machine, a support, a roll supported thereby, a movable carriage, a cooperating roll carried thereby, and an adjustable connection between said carriage and first mentioned roll.

28. In a ring rolling machine, a support, a rollmounted therein for axial shifting movements, a support for said roll, a movable carriage, a cooperating roll carried by'said car riage, and adjustable means connecting said carriage and second mentioned support.

24. In a ring rolling machine, a roll for a cting on the outer periphery of the ring, a roll for acting upon the inner periphery of the ring, an inclined freely floating rollsurroumling one of saidfirst mentioned rolls for acting on a side of the ring and a differential driving mechanism for rotating said first men tioned rolls 25. In=a ring rolling mill, a movable roll, a shiftable carriage, a support for said roll, a pair of rodsconnecting said support and carriage and simultaneously operated means for adjusting said rods.

26. In a ring rolling mill, :1 roll for acting on the inner periphery of said ring, a roll for acting on the outer periphery of said ring and a freely floating rollengaging one side of the ring.

In testimony whereof I have hereunto subscribed myv name.

JAMES HALL TAYLOR. 

